if the accord is equipped with a cam position sensor, a sloppy belt could set a DTC for the crank position sensor because it is not in sync with the cam sensor.

if the crank sensor is a hall effect, check to make sure it is getting a 5v reference signal from the ecu. if it is, use a lab scope to check the waveformit is sending; it should be a digital (on-off) signal, and shouldnt have any hash.

if it is a VRS, hook the lab scope up to it and make sure it is creating a good a/c voltage signal. keep in mind that you should see a spike in voltage once every revolution due to a missing tooth on the reluctor wheel for sync purposes.